Pendant for watch-cases



(No Model.)

' .D. OHARA.

PENDANT FOR WATCH GASES.

Patented May 13, 1884.

Ira/e72 f0 2" Danz'aZ Ojfra N. PUERS, PMo-Uihcgnphon Wishing'nn, D. C-

UNITED STATES PATENT OFFICE.

, DANIEL OHARA, OF WALTI AM, MAssAoIIUsETTS.

PEN DANT FO R WATC H-C AS ES.

SPECIFICATION forming part ofLetters Patent No. 298,616, dated May 13, 1884.

Application filed January 23, 1884. (No model.)

To aZZ whom it may concern.-

Be it known that I, DANIEL OHARA, of the town of Waltham, Middlesex county, Massachusetts, have invented new, and useful Improvements in \VatchCases, of which the following iS a specification.

The first part of my invention is applicable to watches generally, and relates to those devices for the more secure retention of the bow or ring within the pendant in which a locking plate or bush engages the heads on the ends of the bow or ring.

The second part of my invention is applicable to all stem-winding and stem winding and setting watches, and relates to a relative construotion of the crown and pendant portions which (except during the brief periods employed inwinding and setting) enables complete closure of and consequent exclusion of E dust and moisture from the pendant-passage.

In the accompanying drawings, Figure l is an axial section of a watch-pendant and its attachments embodying my invention. Fig. 2 is an external view of the same. Fig. 3 is an enlarged'view of the bushing piece which looks the bow within-the pendant, and Fig. 4 is an inner end view thereof.

A may represent a portion of any watchcase body or center.

The pendant B has customary opposite side orifices, I), for the ends of the suspension ring or bow O, which ends have circumferential grooves 0, providing heads 0, and penetrate sufficiently "through thependant wall to receive within said grooves the walls d (having recessed portions d to receive the heads) of the slots (1 of locking-bush D, which fits and is driven tightly within the pendantbody. The said bush D is preferably of steel The pendant-body is tapered at its upper end, as at b.

The crown E of the winding and setting stem F is cup-formed, and has such interior diameter as enables it to be wedged or jammed tightly upon the tapered head of the pendantbody when no longer needed for winding or setting, as shown in Fig. 1. In this, which may be considered the normal condition of these parts, dust, moisture, and other extraneous matters are obviously completely excluded from the pendant-passage. The taper of the pendant is preferably such as (while holding the crown 'E fast against accidental displacement) to permit its easy dislodgment by the wearer, to enable the use of the member E F for winding or setting. The crown, when re- 1eased,is held permanently away from the pendantbody by a spring, G, which, being securely fastened at one end to the center A, presses by its other end against the inner eX- tremity of the winder-stem.

The form here selected to illustrate my invention is susceptible of several obvious modifications. For eXample,the pendant-head may be cylindrical and the hollow of the crown flaring, or a tapering pendant may be associated with an exactly-fitting flaring crown.

I disclaim a fastening for bows and pendants of watch-cases consisting of heads formed on the ends of the bow, adapted to enter the holes of the pendant, and a locking-plate fitting within the pendant and engaging with the heads on the inside to prevent them withdrawing from the pendant.

I also disclaim a bow or ring having grooved or reduced portions, and a locking device that is adapted to slip over and engage with said grooved ends after they are inserted through the side of the pendant.

I claim as new and of my invention- 1. In a stem-winder watch-case, the combination of the tapering pendant B and the binding cupformed winder-stem crown E, substantially as set forth.

2. In a stem-winder watch-case, the combination, with tapering pendant B and the binding stem-crown E, of the spring G, pressing outwardly against thewinder-stem F, in the manner and for the purpose set forth.

In testimony of which invention I hereunto set my hand. 

